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时间:2019-05-14
《库车坳陷克拉苏构造带油气动态成藏过程及其勘探启示》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、第35卷第3期石油寥露沾届Vo1.35.No.32013年5月PETR0LEUMGE0LoGY&EXPERIMENTMay,2013文章编号:1001—6112(2013)03—0249—06doi:10.11781/sysydz201303249库车坳陷克拉苏构造带油气动态成藏过程及其勘探启示马玉杰,卓勤功,杨宪彰,方世虎,唐雁刚,郭小文,王媛,姜林(1.中国石油塔里木油田分公司勘探开发研究院,新疆库尔勒841000;2.中国石油勘探开发研究院实验中心,北京100083)摘要:综合运用多种成熟度参数以及岩石显微观察、储层沥
2、青测试、颗粒荧光分析等技术.剖析了克拉苏构造带油气热演化程度和油气动态成藏过程。研究认为,克拉苏构造带的原油由成熟和高成熟油组成,油气充注过程为“早期成熟油、晚期高成熟油和高一过成熟气”,早期形成的盐下古油藏受新近纪晚期断裂的破坏和高一过成熟油气的驱替,部分原油向上进入盐上浅层背斜圈闭汇聚成藏随着膏盐岩盖层塑性增强,穿盐断裂消失,盐下圈闭再次聚集高一过成熟的油和气。克拉苏构造带博孜段具有巨大的勘探潜力,同时应重视浅层背斜油藏的勘探。因此厘定油气的成熟度和油气动态成藏过程对查明盆地油气构成和勘探方向具有重要意义。关键词:古油藏
3、;气洗分馏;成藏过程;勘探领域;克拉苏构造带;库车坳陷;塔里木盆地中图分类号:TEl22.31文献标识码:APetroleumdynamicaccumulationprocessanditsimplicationsinKelasustructuralbelt,KuqaDepresion,TarimBasinMaYujie,ZhuoQingong,YangXianzhang,FangShihu,TangYangang,GuoXiaowen,WangYuan,JiangLin(1.ResearchInstituteofPetro
4、leumExploration&Development,TarimOi~ldCompany,PetroChina,Kuerle,Xinjiang841000,China;2.ExperimentCenter,ResearchInstituteofPetroleumExploration&Development,PetroChina,Beijing100083,China)Abstract:ThethermalevolutionanddynamicaccumulationprocessofhydrocarbonintheKel
5、asustructuralbeltwereanalyzedusingvariousmaturityparameters,microscopicobservationofrock,reservoirbitumentesting,andparticlefluorescenceanalysistechniques.Studiessuggestedthatthecrudeoilsinthestudyareaarematureandhigh-mature.Matureoilchargedduringtheearlystagewhile
6、high—matureandover—matureoilschargedduringthelatestage.ThesubsahancientreservoirsformedintheearlystageweredestructedbyfaultsduringthelateNeo-gene,andwerepartiallyforcedbyhigh—matureandover—matureoilsintoshallowanticlinaltraps.Astheplastici—tyofgypsumcaprockenhanced
7、,faultsthroughsaltsdisappeared,andhigh—matureandover-matureoilsaecumu-latedagaininsubsahtraps.TheBozisegmentoftheKelasustructuralbelthasgreatexplorationpotential,andtheshallowanticlinalreservoirsshouldbepaidattentionto.Therefore,thedeterminationofpetroleummaturitya
8、ndthedynamicaccumulationprocessareimportantforidentifyingoilandgascompositionandexplorationinpetroliferousbasins.Keywords:ancientreservoir;gaswas
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